Stoker



May 18, 1937. H. P. ANDERSON STOKER Filed March 28, 1953 2 Sheets-Sheetl @INVENTOR, flan/are ATTORNEY.

May 18, 1937. H. P.- ANDERSON 2,081,113

sTbKER Filed March 28, 1953 2 Sheets-Sheet 2 1 llII/III/IIIIIAVIIIII/AW'INVENTOR.

ATTORNEY.

Patented May 18, 1937 UNITED STATES STOKER Howard P. Anderson, Erie,Pa., assignor, by mesne assignments, to The Standard Stoker Company,Inc., a corporation of Delaware Application March 28, 1933, Serial- No.663,131

2 Claims.

This invention relates generally to stokers and more particularly tostokers arranged to deliver fuel through the firing opening of alocomotive.

One object of the invention resides in the provision of a novel form. ofcombined fuel feeding and firedoor apparatus which is conveniently andadvantageously assembled as a unit for installation to a locomotivefirebox.

Another object of the invention contemplates the provision of a compact,simple. and efiicient novel locomotive unit of a stoker comprising afuel feed casing having a discharge opening in substantial register withthe. firing opening, a frame embracing the firing opening formed withthe fuel casing and a door mounted from the frame to swing vertically ona transverse axis and arranged to form a closure for a hand firingopening in the stoker casing.

It is another object of the invention to provide in combination with astoker of the type described, mechanism for operating the door, whichmechanism is particularly adapted to and arranged in novel relation withthe specific stoker construction.

Other objects of the invention residing in the construction of theindividual elements and their relation one with another will be apparentfrom the following description when read in connection with theaccompanying drawings, wherein Figure 1 is a view in verticallongitudinal section v of a portion of a locomotive with the stokershown in operative position, parts of the stoker being in elevation andparts broken away;

Figure 2 is a view taken on the line 2-2 of Figure 1;

Figure 3 is a view taken on the line 3-3 of Figure 1;

Figure 4 is a view taken on the line 4-4 of Figure 5 with a portionbroken away and a portion shown in section;

Figure 5 is a sectional view taken on the line 5-5 of Figure 2;

Figure 6 is a sectional view taken on the line E--5 of Figure 5;

Figure '7 is a sectional view taken on the line '|1 of Figure 5.

In the drawings, the locomotive is indicated generally by the numeral 10and includes the main frame II, the cab 12 and cab deck l3. At l4, thereis shown the backhead of the firebox l5 constituting a rear water leg ofthe locomotive boiler. A portion of the firebox grate is shown at IS.The backhead 14 has an opening 11 therethrough arranged to form both ahand firing opening and a stoker firing opening.

A stoker for transferring; fuel from a tender, a portion of which isshown at" l8, to the firing opening I! is indicated as a whole by thenumeral 19.. The stoker 19 includes a riser or fuel feed casing 20mounted within the cab 1-2 on the backhead [4 of the firebox I5 in amanner. to surround the conventional firing opening I1. The casing 20may be supported from the backhead [4, at its lower end by the bracket21 and at its upper end or mouth portion 22 by the bolts,

23 passing through the slots 2-4 in the lateral flange 25. The flange orframe 25 defines the discharge opening of the casing 20' and embracesthe firing opening I].

From the firing opening 11, the riser casing 20 slopes rearwardly anddownwardly to a point below the cab deck l3. There its lower open endreceives and is flexibly connected with the front end of a conduitsection 26- leading from a source of fuel supply on the tender i8l. Ascrew conveyor- 21, terminating at its forward end adjacent the lowerend of the casing 20 conveys fuel forwardly from the tender l8 andforces .it through the casing 20 to the firing opening.

The screw conveyor 21 may be driven'from its rearward end orintermediate its ends in any manner well known in the art. For purposeof illustration a driving engine 28 is shown mounted on the locomotiveframe II and a drive shaft 29 extends rearwardly therefrom and isoperatively connected with the screw conveyor through suitable gearing(not shown).

A fuel distributor plate 30 is secured to the flange 25 adjacent thelower end of the mouth portion 22 of the casing 20 in any desired mannerthat will permit of its ready removal. The plate 30 extends forwardlythrough the firing opening I'l into the firebox I5. Fuel is projectedacross the plate 30 by pressure fluid issuing from a distributor head 31located at the rear of the plate. A plurality of ribs 32 are provided onthe upper surface of the plate 30 and are arranged spective flanges 35-and 36 by suitable means, as

by bolts 31. The wings 33 and 34 in effect form continuations of thewalls of the mouth portion 22 of the casing 20 and extend into the.firing opening thereby preventing coal from spilling overthe sides ofthe rearward portion of the distributor plate.

The casing 20 is provided in its top, immediately rearward of the flange25, with an opening 38 of sufficient size to permit entrance to begained to the firebox for the purpose of inspecting the grates, andother parts of the firebox and for effecting necessary repairs. Theopening 38 also forms a hand firing opening and permits insertion of ahook or rake for raking or cleaning the fire. A dome shaped door 39forms a continuation of the rear and side walls of the casing and aclosure for the opening 38 and is mounted on the flange 25 to swingvertically about a transverse axis, as for instance, on the rod 8 whichis journalled in the bearings 9.

The mechanism for operating the door 39 comprises a hand lever 49pivoted loosely on the pin 4| which projects laterally from a side ofthe casing 29 adjacent the flange 25 and in a plane below the axis aboutwhich the door 39 swings. A link 42 is pivoted loosely at one end on apin 43 intermediate the pivoted end and the free end of the hand lever49and pivoted loosely on a pin 44 in the lug 45 of the door 39. Thus byraising the hand lever 40, the door 39 is opened through the link 42.

In order to retain the door in any one of a number of positions, aquadrant shaped rack 46 is formed with the casing 20 and is providedwith a plurality of notches 41. A rod 48 is movably mounted with thehand lever 40 and its one end is pressed against the curved surface ofthe rack 46 by the spring 49 and as the hand lever 4|] is raised, therod 48 will engage one of the notches 4'! thereby retaining the handlever 40 and door 39 in position. To release the door 39, the rod 48 isremoved from engagement with the notch 41 by pressure of the hand on theextension 59 of the rod 48.

The distributor head 3| is arranged to be inserted into position in themouth portion of the casing 29 through an opening 5| in the casingsidewall adjacent its discharge end. Extending transversely across thebottom wall of the mouth portion of the casing 20 is an arcuate shapeddepression 52 arranged to form a seat for the distributor head 3| whichis provided with a complementary arcuate shaped surface 53. The

distributor head is held in position at one end by the wall of thecasing 20 bordering the opening 5| and at its other end by the lug 54which is received in the opening 55 in the thickened wall portion 56 ofthe casing 20. The distributor head 3| is adjustable about itstransverse axis and may be secured in any one of a number of positionsby the bolt 51 which passes through the arcuate slot 58 in the flange 59of the distributor head and into the lug 60 on the casing 20. The lug 60shown in section in Fig. 6 corresponds in shape to the flange 59 whichappears in Fig. 1.

The distributor head 3| is provided with a concave rear wall 6|conforming to the shape of the wall of the casing 29 and. a concavetopwall 62 conforming with the shape of the wall of the mouth portion ofthe casing 29. The distributor head 3| is divided internally intochambers 63,

64 and 65 and openings 56, 61 and 68 in the end wall of the headcommunicate respectively with the chambers 63, 64 and 65 for theintroduction of pressure fluid. That portion of the arcuate shaped wall53 of the distributor head that faces the firebo-xis provided with aplurality of jet openings 69 communicating with the chambers 63, 64 and65. A plurality of supply lines 19 conduct pressure fluid to thechambers 63, 64 and 65 and may be provided with valves (not shown) forregulatirg the supply of pressure fluid to the chambers.

From the foregoing it will be realized that a novel stoker for feedingfuel through the firing opening has been constructed which is of asimple and durable nature and in which the parts are so organized thataccess to the firebox may be made conveniently.

This application has been divided and applications Serial Nos. 137,470and 137,471 were filed April 17 1937 to cover the divisional subjectmatter.

The appended claims define the scope of the present invention.

I claim:

1. In a stoker provided with a riser casing having an opening in its topportion and a movable door on said casing forming a closure for saidopening, mechanism for actuating said door, said door being hinged atone end to swing vertically on an axis transverse to the riser casing,said mechanism comprising a handle pivotally mounted at one side of saidriser casing on an axis transverse to the casing and in a horizontalplane below the horizontal plane of the axis of the hinge for said door,and a link at one end connected to said door between the axis of itshinge and the opposite end thereof and said link at its other end beingconnected to said handle between the free end of the handle and thepivotally mounted end thereof whereby upward movement of said handle istransmitted to said door for uncovering the opening in said risercasing.

2. In a stoker provided with a riser casing having an opening in its topportion and a movable door on said casing forming a closure for saidopening, mechanism for actuating said door, said door being hinged atone end to swing vertically on an axis transverse to the riser casing,said mechanism comprising a handle pivotally mounted at one side of saidriser casing on an axis transverse to the casing and in a horizontalplane below the horizontal plane of the axis of the hinge for said door,and alink at one end connected to said door between the axis of itshinge and the opposite end thereof and said link at its other end beingconnected to said handle between the free end of the handle and thepivotally mounted end thereof whereby upward movement of said handle istransmitted to said door for uncovering the opening in said risercasing, the connection between the link and the door being disposed atone side of a plane passing between the hinge of said door and theconnection between the link and the handle, and the axis of the pivotedend of saidhandle being dis- HOWARD P. ANDERSON.

